US650572A - Cow-milker. - Google Patents

Description

Patented May 29, |900.

W. `l. THATCHER &. N. W. HUSSEY.

C 0 W M l L K E R (Application med Novnada 189e.)

(No Ilodel.) 2 Sheets-Sheet l.

cams Varens co., FHoYourHu. wnsnme.

Hd iljessas No. 650,572. Patented May 29, i900. W. B. THATCHER N. HUSSEY.

COW MILKER.

(Applicatonled Nov. 30, 1898.) 4

2 Sheets-Sheet 2.

(No Model.)

wams@ me Noam: PETERS cc., PnoYoumo., WASHINGTON, n. c,

UNITED STATES #PATENT Ormes.

WALTER It. THATCHER AND NATHA WV. HUSSEY, OF OSALOOSA, OWA.

cow-Makes.

SPECIFICATION forming parc of Letters Patent No. eso'raaaeed May 29, 1900.

yApplication tiled November 30, 189B. Serial No. 697,863. (No model.)

To all whom t 11mg/ concern:

Beit known that we,WAL'rER R. THATCHER and NATHAN W. l'lUssEY, citizens of the United States, residing at Oskaloosa, in the county of Mahaska and Stateof Iowa, have invented a new and useful Cow-Milker,'of which the following is a speciicatiou.

The invention relates to improvements in cow-milkers.

One object of the present invention is to improve the construction of cow-milkers and to provide a simple, inexpensive, and efficient one adapted to discharge milk directly into an ordinary milk-can and capable of being readily transferred from one can to another.

A further object of the invention is to provide a simple and effective teat-cup adapted to afford a broad, yielding, and easy surface to a teat and capable of securing a complete air-tight connection with the same without closing the teat or in any manner retarding the iiow of the milk.

Furthermore, the invention has for its object to provide an adjustable device adapted to be arranged against a cows udder to prevent the teat-cup from being drawn upward too far on the teat.

Another obj ect of the invention is to enable the operator to see whether the cups are working properly and to enable the device to be easily cleaned.

The invention consists in the construction and novel combination and'arrangement of parts, as hereinafter fully described, illustrated in. the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a cow-milker constructed inv accordance with this invention, the lid, or cover of the can being separated from the body portion matic ring or cushion.

Like numerals of reference designate corresponding parts in all the gures of the drawings.

l designates a detachable cover or lid de signed to be arranged on a milk-can 2, formin gan air-tight connection with the same and carrying an air-pump`8 and a vacuum-gage 1i, as clearly illustrated in Fig. l ofthe accompanying drawings. The air-pump 3 has its cylinder extending into'tlie cover or lid about one-half of its length, the operating mechanism being located above the said lid or cover, which is hollow. The lower point of the cylinder extends below the bottom of the lid or cover and projects into the milkcan, so that the air within the same can be exhausted to create a sufficient vacuum for effecting the milking operation. The vacuum-gage is mounted upon the upper end of a short tube 5, which extends through the cover or lid into the can, being provided above the said lid or cover with a valve or stop-cock 6. The gage is adapted to indicate when a sufticient amount of air is exhausted from the can by the air-pump, and in the operation of the milker the air is exhaustedfrom the can before the cups are applied to a cow.

The can is provided at one side, near the top, with a stop-cock 7, to which is attached a flexible tub'e 8, consisting of a rubber hose or other suitable material and designed to be connected with a cows udder for conducting the milk from the same to the can when the stop-.cock 7 is opened. The rubber hose or tube is connected with the udder of the cow by means of four teat-cups 9, which are provided with independent stop-cocks 10.'

The machine'is operated by placing the lid or cover, to which the pump and gage are attached, upon the can and pressing it down to form an air-tight joint. The operating-lever 1l of the air-pump is thenl oscillatedfuntila portion of the air 'in the can is exhausted, which will be indicated by the gage. When a proper vacuum has beenobtain'ed, the stopcock at the side of the can is opened and the cows teats are placed one by one in the teatcups. The stop-cocks of the teat-cups are open, and the milk will iow through thefcups and hose into the can.

Each teat-cup consists of an inner casing l2 and an outer casing 13, both constructed of rubber, metal, or other suitable material, and the inner casing has its upper end 14 enlarged, forming au annular seat for a pneu- IOG The lower end of the' inner casing is tapered at 17 and receives and forms a seat fora tapering glasstube 18,

which is adapted to extend into a rubber hose A 19, constituting a branch of the main hose or pipeS. This glass is retained in the inner casing by any suitable means to atord an airtight joint, and while providing an efficient connection between the cup and the hose it also enables the operator to see when the cup is working properly.

The outer casing, which is cylindrical, is ad justably secured to the inner casing by means of a pin 20 and a longitudinal slot 21, the pin being mounted on the inner casing and the slot being formed in the outer casing and having a series of branches or extensions 22, arranged at intervals and adapted to receive the pin, whereby the parts are retained at the desired adjustment. The adjustable outer'casing is designed to be arranged against the vudder of a cow to prevent a teat from being drawn inward too far into the inner casing.. The teat is placed inthe cup, and the stop-,cock or valve 10 is opened, which causes the teat to be drawn into the opening of the pneumatic ring, making an air-tight joint, without closing the said teat, the outer adj ustable section servin g as a stop to limit such inward movement. After the point of the teat is inserted in the opening of the pneumatic ring or cushion the outside casing is adjusted up tothe udder of the cow and secured by engaging the pin with one of the branches or extensions of the slot, which will insure a proper operation of the device.

The invention has the following advantages: The cow-inilkeris simple, inexpensive,

tion by pressing against the udder of a cow prevent-s the innersection or cup proper from being drawn too far up on a teat, and the tobe applied to dierent cans, a pump mounted on theremovable lid or cover for exhausting air Avfrom the can, a vacuum-gage also carried by the lid or cover and communicating with the interior of the can, and a tube having teat-cups and connected with the stop-cock, the latter being adapted to control the passage of air through the tube, whereby the air in the can may be exhausted prior to the operation of milking, substantially as described. 2. A cow-inilker provided with a teat-cup comprising an inner teat-receiving section, and an outer section iitting over said inner section and adjustable beyond the teat-receiving end thereof for engagement against the udder ot' the animal, and fastening means for securing the outer section in its adjusted positions, substantially as described.

3. A coW-milker provided With a teat-cup comprising an inner section or cup propel'.

having its upper end enlarged to form a seat, a cushioning-ring arranged within the enlarged upper end of the inner section, and au adjustable outer section, substantially as described.

4. A cow-millier provided with a teat-cup comprising an inner casnghaving a tapering lower portion, a transparent tube litted in the lower portion of the inner casing, a cushion arranged at the upper end ot the inner casin g, and an adjustable outer casing, substantially as described.

5. A cow-millier provided with a teat-cup having a teat-receiving section, and a separap-te udder-engaging member adjustable to variable positions beyond the receiving end of said section, substantially as described.

6. In a cov-millier, the teat-cup consisting of au inner casing and an outer casing adjustable with relation to each other, and a pneumatic ring arranged within the outer casin g at one endof the inner casing, and having an inner diameter less than the' diameter of said inner casing, substantially `as described.

In testimony that we claim the foregoing as our own We have hereto affixed our signatures in the presence of two Witnesses.

VALTER R. THATCHE. NATHAN V. HUSSEY. Witnesses:

C. S. LoNesHoRn, C. M. DIXON.

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